Analysis of open Coil Helical Spring used in Vehicles

2017 ◽  
Vol 3 (10) ◽  
Author(s):  
Sameer Singh ◽  
Shyam Birla ◽  
Neeraj Kumar Nagaych
Keyword(s):  
Titanium Alloy ◽  
Carbon Fibre ◽  
Dynamic Loading ◽  
Spring Steel ◽  
Fibre Material ◽  
Helical Spring ◽  
Carbon Fibre Material ◽  
Suspension Spring ◽  
Steel Material

 In this paper suspension spring of a 160cc 2-wheeler is analyzed and optimized for its performance. For this study the diameter and the material of the coil wire for suspension is changed and its effect is noted. In this study three materials were studied that is ASTM A227 hard drawn spring steel material, carbon fibre Material and titanium alloy. The results were obtained for all of these materials and based on the results it can be said that spring made of carbon fibre material gives the best results. The springs were tested under both static as well as dynamic loading, and in all of the tests Carbon fibre spring proved to be best.

scholarly journals Numerical modelling of entangled carbon fibre material under compression

2018 ◽  
Vol 151 ◽  
pp. 14-24 ◽  
Author(s):  
Fadhel Chatti ◽  
Dominique Poquillon ◽  
Christophe Bouvet ◽  
Guilhem Michon
Keyword(s):  
Numerical Modelling ◽  
Carbon Fibre ◽  
Fibre Material ◽  
Carbon Fibre Material

scholarly journals Stability of Physically-Loaded Helical Springs used in Smart Fork Lift

2019 ◽  
Vol 9 (2) ◽  
pp. 3839-3845
Keyword(s):  
Heat Treatment ◽  
Spring Steel ◽  
Original Form ◽  
Helical Spring ◽  
Storage Devices ◽  
Helical Springs ◽  
Conical Shape ◽  
Steel Material ◽  
Compression Springs ◽  
Mechanical Devices

In the following section, the behavior of helical compression springs is considered in smart fork lift (established in previous work). We have used commonly used cylindrical and conical shape helical spring as storage devices in which stability defined in term of load-gains, deflections and evaluation of spring-rates. Springs’ rates of both springs were compared on a common platform. Initially both springs (helical-conical) was prepared from the coiled wires. These prepared springs also known as coil springs which regain its original form and position when distorted by the loaded in smart fork-lift apparatus. These coils springs here developed by the applying the heat treatment and quenching processes on the galvanized spring steel material by using the threaded shape fixtures. This prescribed work focused on effect of physically-loaded gains by cylindrical and conical shaped helical spring in smart fork lift. Here, springs worked as mechanical devices to bear the lifting load which differed here greatly in strength and in size depending on changing its parameters. Both the cylindrical and conical shape was made of helically coiled wires with constant clearance between the active coils and able to absorbed external counteracting loads applied against each other in their axis. One direction deformation in axially format was considered.

Development of Nonwoven Preforms Made of Pure Recycled Carbon Fibres (rCF) for Applications of Composite Materials

2017 ◽  
Vol 742 ◽  
pp. 555-561 ◽  
Author(s):  
Marcel Hofmann ◽  
Dirk Wenzel ◽  
Bernd Gulich ◽  
Heike Illing-Günther ◽  
Daisy Nestler
Keyword(s):  
Carbon Fibre ◽  
Woven Fabric ◽  
Fibre Material ◽  
Carbon Fibres ◽  
Carbon Fibre Material ◽  
Textile Processing ◽  
Reinforced Plastics ◽  
Laser Systems ◽  
Sewing Threads ◽  
Fabric Production

For the development of an efficient and economic recycling process of carbon fibers (CF) still many technological challenges have to be mastered. One of them is the removal of all extraneous natural and synthetic fibres, e.g. polyester sewing threads. The objective of the research was to develop an in-line process for the removal of those extraneous fibres, which result from mechanical processes such as tearing. A promising approach for the removal of extraneous fibres from cut-off carbon-fibre material (CF) has been identified, getting recycled carbon fibres (rCF). For that purpose, the use of modern laser technologies is particularly promising. However, the focus was not the development of new laser systems, but the adaptation of existing technologies and their integration into textile processing steps for carbon fibre recycling. In addition to the removal of the extraneous fibres, the degree of CF losses and quality degradation due to fibre damage have been analysed and compared with optimum fibre characteristics. The separation has been experimented and corresponding laser parameters have been defined. Finally, the obtained carbon-fibre material has been tested with regard to its processability in textile manufacturing processes (dry non-woven fabric production) up to carbon fibre reinforced plastics (CFRP). For the evaluation of the material for potential applications, test plates from irradiated and non-irradiated material have been used. The performed tensile and flexural tests have proved that the irradiated material has similar properties compared to the non-exposed one.

The use of carbon fibre material in radiographic cassettes: estimation of the dose and contrast advantages.

1997 ◽  
Vol 70 (832) ◽  
pp. 383-390 ◽  
Author(s):  
D R Dance ◽  
S A Lester ◽  
G A Carlsson ◽  
M Sandborg ◽  
J Persliden
Keyword(s):  
Carbon Fibre ◽  
Fibre Material ◽  
Carbon Fibre Material
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